65011523 has 2 divisors, whose sum is σ = 65011524. Its totient is φ = 65011522.

The previous prime is 65011517. The next prime is 65011561. The reversal of 65011523 is 32511056.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65011523 - 2⁶ = 65011459 is a prime.

It is not a weakly prime, because it can be changed into another prime (65011223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32505761 + 32505762.

It is an arithmetic number, because the mean of its divisors is an integer number (32505762).

Almost surely, 2^65011523 is an apocalyptic number.

65011523 is a deficient number, since it is larger than the sum of its proper divisors (1).

65011523 is an equidigital number, since it uses as much as digits as its factorization.

65011523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 65011523 is about 8062.9723427530. The cubic root of 65011523 is about 402.0963338514.

Adding to 65011523 its reverse (32511056), we get a palindrome (97522579).

The spelling of 65011523 in words is "sixty-five million, eleven thousand, five hundred twenty-three".